The carnivores are, according to many, one of the most frightening examples of what can happen when man meddles with nature.

The breed is criticized for being “wandering meat plants.” It has abnormally huge muscles – a grown bull often weighs between 1.1 and 1.2 tonnes. In the animal’s body, a protein has been created that inhibits muscle growth, which allows the muscles of the animals to grow much larger than usual.

It has been reported that the genetic mutation produces a number of other effects such as deformed jaws and enlarged tongues that make it difficult for the calves to suckle.

The mutation can also have underdeveloped internal organs – ­the liver and lungs are significantly smaller than in common cattle – which can lead to breathing difficulties, heart problems and infertility.

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